Waterproof Stainless Steel Material: constructed from quality stainless steel, these plant markers for garden boast a robust build that 't rust or corrode over time Weatherproof marking with a permanent marker pen ( not included) DIY Writing: With their waterproof and weatherproof feature, these garden markers can withstand rainy or humid conditions without fading or smudging. You can now label your plants with confidence, knowing that the important information stay intact regardless of the weather., Manufacturer: Akfldms